Plane-ing victory

- [x] Making planes able to complete a full run och the map
- [x] Limiting amount of planes out at the same time
- [x] Adding effect to show that a plane has completed center laps
- [x] Adding UI, displaying die costs for passing from each layer to another
- [x] Adding timer for time left
- [x] Adding Win condition
- [x] Adding reset functionality

No files, tests, or entry points are named in the issue; start by inspecting the repository structure and locating the plane, map, UI, timer, and game-state code. Done means implementing and verifying every checked item: full-map runs, plane limits, completion effects, layer-cost UI, timer, win condition, and reset functionality.

Written by the indexing model from the issue text.